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Dr. Billing is on Doximity

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Education & Training

  • University of California (San Diego) Medical Center
    University of California (San Diego) Medical CenterInternship, Transitional Year, 1974 - 1975
  • George Washington University School of Medicine and Health Sciences
    George Washington University School of Medicine and Health SciencesClass of 1974

Certifications & Licensure

  • WA State Medical License
    WA State Medical License 2004 - 2025
  • CA State Medical License
    CA State Medical License 1975 - 2025
  • American Board of Urgent Care MedicineUrgent Care

Hospital Affiliations